What are some alternatives?
When comparing CellSend and WeTransfer, you can also consider the following products
Pushbullet - Pushbullet - Your devices working better together
Dropbox - Online Sync and File Sharing
Pushover - Real-time notifications on your Android, iPhone, iPad, and Desktop
Box - Box offers secure content management and collaboration for individuals, teams and businesses, enabling secure file sharing and access to your files online.
AirMore - AirMore is a cross-platform toolset that can help you manage any Android device wirelessly.
Mega - Secure File Storage and collaboration